cand ollea Journal international de botanique systématique

65 (2) Editions des Conservatoire et Jardin botaniques

Directeur: Pierre-André Loizeau

Rédacteur: Patrick Perret

Rédacteur-adjoint: Patrick Bungener

Comité de lecture: David Aeschimann, Beat Bäumler, Cyrille Chatelain, Alain Chautems, Philippe Clerc, Laurent Gautier, Daniel Jeanmonod, Catherine Lambelet, Mathieu Perret, Michelle Price, Lorenzo Ramella, Fred Stauffer

avec la collaboration d’experts étrangers spécialement désignés

Toute correspondance doit être adressée à: All correspondence should be submitted to: Rédaction «Candollea-Boissiera» Conservatoire et Jardin botaniques de la Ville de Genève Case postale 60 CH-1292 Chambésy [email protected]

© CONSERVATOIRE ET JARDIN BOTANIQUES DE GENÈVE 2010 candollea Journal international de botanique systématique

Dealing with nivea (Leguminosae) – a new name for Madagascar and a new combination for Africa

Martin W. Callmander, Jean-Noël Labat & Brian D. Schrire

9 décembre 2010

65(2) 1 1. CALLMANDER, Martin W., Jean-Noël LABAT & Brian D. SCHRIRE: Dealing with Indigofera nivea (Leguminosae) – a new name for Madagascar and a new combination for Africa

Introduction Observations. – Indigofera nivea R. Vig., published in VIGUIER (1949), is endemic to Madagascar and was accepted This first note deals with the name “Indigofera nivea” as a valid name in “Leguminosae of Madagascar” by DU PUY which comprises two homonyms (one based on material from & al. (2002). Viguier’s name is in fact a later homonym of Madagascar and the other on material from southern Africa). I. nivea Spreng., and no valid name is available for the Mala- A new species name is required for the illegitimate later hom- gasy species. The species is a small subshrub with densely onym published by VIGUIER (1949) for which no valid name white-woolly and stems. Indigofera viguieri can be is available. The name I. viguieri Callm. & Labat is published distinguished from the most closely related species, I. kirkii here note for this Malagasy species. Indigofera nivea Spreng. Oliv., by its densely white-woolly leaves (vs. the thinly white was validly published by SPRENGEL in 1826, but has been gen- strigose leaves in I. kirkii), the more coriaceous texture of the erally overlooked or confused in the literature. It is an earlier leaves, and pods with 3-5 (vs. 1-3) seeds (DU PUY & al., 2002). name for the southern African that has been known as It is known from only two collections made by Perrier de la argyraeum (Eckl. & Zeyh.) Schrire (SCHRIRE, Bâthie in northwestern Madagascar on sand dunes bordering 1992). A new combination in the Indigastrum Jaub. & the Betsiboka and Mahavavy rivers. Spach is required, which is published here as I. niveum Etymology. – We name this species after René Viguier (Spreng.) Schrire & Callm. Another tentative use of the spe- (1880-1931), from Caen (France), who made a major contri- cific epithet nivea was as a misapplied synonym of Indigofera bution to the knowledge of Leguminosae in Madagascar. René glomerata E. Mey. (MEYER, 1832). He placed a question mark Viguier undertook a full revision of the family that he left in his synonymy indicating his doubt about the identification unpublished when he died in 1931. Most of Viguier’s work of the Sprengel name. was validated posthumously thanks to H. Humbert (VIGUIER, 1949, 1950, 1952) and his unpublished manuscript, “les Légu- mineuses de Madagascar” served as the basis for the “Legu- and nomenclature of Indigofera nivea Spreng. minosae of Madagascar” (DU PUY & al., 2002). 2 Indigofera viguieri Callm. & Labat, nom. nov. Conservation status. – With an EOO of 18 km and only two collections known, both dating back over one hundred ϵ Indigofera nivea R. Vig. in Notul. Syst. (Paris) 13: 368. years, and these comprising only two subpopulations, none of 1949 [non Spreng., Syst. Veg. 3: 273. 1826]. which occur in a protected network, I. viguieri is best assigned Typus: MADAGASCAR. Prov. Mahajunga: Ambongo, rive a preliminary status of “Critically Endangered” (CR A3c; droite de la Mahavavy, Itampika, 13°38’23”S 48°40’06”E, B2ab[iii]) following the IUCN Red List Categories and V.1902, fl., Perrier de la Bâthie 1434 (holo-: P [P00077 Criteria (IUCN, 2001) (calculation following CALLMANDER & 66]!; iso-: K [K000392972]!, P [P0007767, P0007768]!). al., 2007).

Addresses of the authors: MWC: Missouri Botanical Garden, P.O. Box 299, St. Louis, Missouri, 63166-0299, U.S.A. and Conservatoire et Jardin botaniques de la Ville de Genève, ch. de l’Impératrice 1, C. P. 60, 1292 Chambésy. Switzerland. Email: [email protected] JNL: Muséum national d’Histoire Naturelle, Département Systématique et Evolution, UMR 7205, case postale 39, rue Cuvier 57, 75231 Paris, cedex 05, France. BDS: Herbarium, Library, Art & Archives, Royal Botanic Gardens Kew, Richmond, Surrey, TW9 3AB, United Kingdom. 364 – Candollea 65, 2010

Indigastrum niveum (Spreng.) Schrire & Callm., comb. nova References ϵ Indigofera nivea Spreng., Syst. Veg. 3: 273. 1826. ARNOLD, T. H. & B. C. DE WET (1993). of southern Africa: Typus: SOUTH AFRICA. W. Cape Prov.: Willdenow 13890 names and distribution. Mem. Bot. Survey S. Africa 62. (holo-: B-W!). CALLMANDER, M. W., G. E. SCHATZ, P. P. LOWRY II, M. O. LAIVAO, ϭ Indigofera argyraea Eckl. & Zeyh., Enum. Pl.: 239. J. RAHARIMAMPIONONA, S. ANDRIAMBOLOLONERA, T. RAMINOSOA 1836. ϵ Indigastrum argyraeum (Eckl. & Zeyh.) & T. CONSIGLIO (2007). Application of IUCN Red List criteria Schrire in Bothalia 22: 168. 1992. Typus: SOUTH and assessment of Priority Areas for Plant Conservation in Mada- gascar: rare and threatened Pandanaceae indicate new sites in AFRICA. E. Cape Prov.: Tembuland, nr. Klipplaat R. need of protection. Oryx 41: 168-176. & Swart Kei R., by Shiloh Mission, 1060-1200 m, I-III.1832, Ecklon & Zeyher 1595 (lecto-: S!; isolecto-: DU PUY, D. J., J.-N. LABAT, R. RABEVOHITRA, J. F. VILLIERS, J. BOSSER & J. MOAT (2002). The Leguminosae of Madagascar. Royal B! G! M! SAM! TCD!) (lectotypified by SCHRIRE, Botanic Gardens, Kew. 1992). IUCN (2001). IUCN Red List Categories and Criteria: version 3.1. Observations. – Taxonomic research by SCHRIRE (1991, IUCN Species Survival Commission. IUCN, Gland and Cam- 1992, 1995) and molecular phylogenies (SCHRIRE & al., 2003, bridge. 2009), provided the background that justified the resurrection MEYER, E. H. F. (1832). Plantae Ecklonianae. Linnaea 7: 145-173. of the genera Benth. and Indigastrum, which had generally been placed in synonymy under Indigofera L. SCHRIRE, B. D. (1991). Systematic studies in African Indigofereae (Leguminosae-Papilionoideae). Ph.D. thesis, University of Natal, (SCHRIRE, 1992). Among others, the taxon Indigofera argy- South Africa. raea was therefore transferred to the genus Indigastrum. In SCHRIRE, B. D. (1992). New combinations and resurrected names “Plants of southern Africa: names and distribution” (ARNOLD in Microcharis and Indigastrum (Leguminosae-Papilionoideae). & DE WET, 1993), Schrire placed Indigofera nivea in synon- Bothalia 22: 165-170. omy under Indigastrum argyraea, based on unpublished infor- SCHRIRE, B. D. (1995). Cladistic analysis of the tribe Indigofereae mation before he was able to study the type. More recently (Leguminosae). In: CRISP, M. D. & J. J. DOYLE (ed.), Advances after studying the type in the Willdenow collection in Berlin, in Legume Systematics, Part 7, Phylogeny: 161-244. Royal the identity of the Sprengel name was confirmed, and it became Botanic Gardens, Kew. apparent that Indigofera argyraea and I. nivea are indeed con- SCHRIRE, B. D., M. LAVIN, N. P. BARKER, H. CORTES-BURNS, I. VON specific, the necessary new combination being made here. SENGER & J.-H. KIM (2003). Towards a phylogeny of Indigofera (Leguminosae-Papilionoideae): identification of major clades Acknowledgements and relative ages. In: KLITGAARD, B. B. & A. BRUNEAU (ed.), Advances in Legume Systematics, part 10, Higher level system- The first author thanks Cyrille Chatelain and Pierre-André atics: 269-302. Royal Botanic Gardens, Kew. Loizeau for support at the Conservatoire et Jardin botaniques SCHRIRE, B. D., M. LAVIN, N. P. BARKER & F. FOREST (2009). Phy- de la Ville de Genève (CJBG). The authors are also greatful to logeny of the tribe Indigofereae (Leguminosae–Papilionoideae): Patrick Perret for his assistance with nomenclatural matters at Geographically structured more in succulent-rich and temperate the CJBG. Financial support was provided by grants from the settings than in grass-rich environments. Amer. J. Bot. 96: 816- U.S. National Science Foundation (0743355) and the Andrew 852. W. Mellon Foundation. SPRENGEL, C. (1826). Systema vegetabilium. Vol. 3. Göttingen. VIGUIER, R. (1949). Leguminosae Madagascarienses Novae. Notul. Syst. (Paris) 13: 333-369. VIGUIER, R. (1950). Leguminosae Madagascarienses Novae (suite 1). Notul. Syst. (Paris) 14: 62-74. VIGUIER, R. (1952). Leguminosae Madagascarienses Novae (suite 2). Notul. Syst. (Paris) 14: 168-187.